Color

#338057

#338057
hex#338057
rgbrgb(51, 128, 87)
hslhsl(148, 43%, 35%)
oklchoklch(0.54 0.1 157.2)
Closest name: Amazon (#387b54)Relative luminance 0.1683

Colors that go with #338057

Charcoal, Crimson and Medium Violet Red lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#80335c

#358033 · #33807d

#573380 · #805733

Split-complementary

Open in tool →

#7d3380 · #803335

#333580 · #80335c · #807d33

Contrast

#338057 as textRatioAAAA largeAAAFix
Aaon white
4.81:1passpassfail
  • AAA: use #276243 as the text (7.21:1)
Aaon black
4.37:1failpassfail
  • AA: use #348359 as the text (4.54:1)
  • AAA: use #43a872 as the text (7.08:1)
  • AA: or shift the background to #fafafa (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #338057 as the background.

Brands using this color

mcpConnect your agent — build around #338057
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #338057 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/338057-a2beb2-d259d4-1f2d2c-eaf1e9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md